32 lines
1.0 KiB
HTML
32 lines
1.0 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<script type="text/javascript">
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if (window.testRunner)
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testRunner.dumpAsText();
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if (window.internals)
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internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
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function test()
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{
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document.body.offsetHeight;
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if (window.internals)
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window.internals.startTrackingRepaints();
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window.scrollTo(0, 1000);
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window.scrollTo(0, 100);
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if (window.internals)
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document.getElementById('repaintRects').textContent = window.internals.repaintRectsAsText();
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}
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</script>
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</head>
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<body style="height:2000px" onload="test()">
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<div style="position: fixed; top: -300px; left: 100px; width: 88px; height: 88px; background-color: silver"></div>
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<div style="position: fixed; top: 1000px; left: 100px; width: 99px; height: 99px; background-color: silver"></div>
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There should be no repaints here:
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<pre id="repaintRects"></pre>
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</body>
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</html>
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